/usr/lib/ruby/3.4.0/rubygems.rb:269:in 'Gem.find_spec_for_exe': can't find gem rackup (>= 0.a) with executable rackup (Gem::GemNotFoundException) from /usr/lib/ruby/3.4.0/rubygems.rb:288:in 'Gem.activate_bin_path' from /usr/bin/rackup:25:in '<main>'
Rails is a web-application framework that includes everything needed to create database-backed web applications according to the Model-View-Controller (MVC) pattern.
From ruby3.4-rails-8.1 8.1.4.1-r0 (enterprise-packages), captured 2026-11-08 by running rackup --help (exit 1) · terse output. permalink
/usr/lib/ruby/3.4.0/rubygems.rb:269:in 'Gem.find_spec_for_exe': can't find gem rackup (>= 0.a) with executable rackup (Gem::GemNotFoundException) from /usr/lib/ruby/3.4.0/rubygems.rb:288:in 'Gem.activate_bin_path' from /usr/bin/rackup:25:in '<main>'